Description
The Square D EHB14030 is a 1-pole, 30-amp, 277V thermal magnetic molded case circuit breaker designed for industrial and commercial electrical systems. It provides reliable overload and short-circuit protection with a 14kA interrupting rating at 277V. The EHB14030 features a bolt-on mounting connection and long-time and instantaneous trip functions, ensuring safe and precise circuit protection in panelboard installations.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breaker |
| Part Number |
EHB14030 |
| Subcategory |
Molded Case |
| Series |
EHB |
| Voltage Rating |
277 V AC |
| Amperage Rating |
30 A |
| Poles |
1 |
| Phase |
1 |
| Interrupting Capacity |
14kA @ 277V |
| Protection Type |
Thermal Magnetic |
| Trip Functions |
Long-Time and Instantaneous (LI) |
| Mounting Type |
Bolt-On |
| Frame Type |
EH |
| Wire Size |
#14–#2/0 AWG Cu/Al |
| Approvals |
UL Listed, CSA Certified |
| Operating Temperature |
40 °C |
| Weight |
2 lb |
Information About EHB14030
The EHB14030 is part of the Square D EHB Series, a line of EH-frame molded case circuit breakers engineered for durability and consistent performance. It is designed for single-phase, 277V systems and supports a wide range of branch circuit applications. This breaker utilizes thermal-magnetic trip technology and bolt-on mounting for secure integration into standard panelboards. Certified to UL and CSA standards, it provides dependable protection for both industrial and commercial electrical environments.
Key Features:
- Current Rating: 30 Amps – Supports moderate-load branch circuits in commercial and industrial settings.
- Voltage Rating: 277V AC – Compatible with single-phase electrical systems.
- Interrupting Capacity: 14kA – Safely interrupts high short-circuit currents to protect the system.
- Protection Type: Thermal-Magnetic – Provides overload and short-circuit protection for connected circuits.
- Trip Functions: LI – Combines long-time and instantaneous trip mechanisms for precise response.
- Mounting Type: Bolt-On – Ensures secure attachment to compatible panelboards.
- Frame Type: EH – Fits standard EH-frame panelboards with 15–100A range.
- Certifications: UL Listed, CSA Certified – Meets recognized electrical safety and performance standards.
The EHB14030 delivers the reliability and precision required for safe and efficient branch circuit protection in industrial and commercial installations.
